초록 ▼

A light source that utilizes light emitting diodes that emit white light is disclosed. The diodes are mounted on an elongate member having at least two surfaces upon which the light emitting diodes are mounted. The elongate member is thermally conductive and is utilized to cool the light emitting di

A light source that utilizes light emitting diodes that emit white light is disclosed. The diodes are mounted on an elongate member having at least two surfaces upon which the light emitting diodes are mounted. The elongate member is thermally conductive and is utilized to cool the light emitting diodes. In the illustrative embodiment, the elongate member is a tubular member through which a heat transfer medium flows.

대표청구항 ▼

1. A light source comprising:an elongate thermally conductive member having an outer surface;a plurality of light emitting diodes carried on said elongate member outer surface at least some of said light emitting diodes being disposed in a first plane and others of said light emitting diodes being d

1. A light source comprising:an elongate thermally conductive member having an outer surface;a plurality of light emitting diodes carried on said elongate member outer surface at least some of said light emitting diodes being disposed in a first plane and others of said light emitting diodes being disposed in a second plane not coextensive with said first plane;electrical conductors carried by said elongate thermally conductive member and connected to said plurality of light emitting diodes to supply electrical power thereto; andsaid elongate thermally conductive member being configured to conduct heat away from said light emitting diodes to fluid contained by said elongate thermally conductive member;said elongate thermally conductive member comprises one or more heat dissipation protrusions. 2. A light source in accordance with claim 1, wherein:at least one of said heat dissipation protrusions being carried on said elongate member outer surface. 3. A light source in accordance with claim 2, wherein:said elongate thermally conductive member is configured to conduct heat away from said light emitting diodes to fluid proximate said elongate member outer surface. 4. A light source in accordance with claim 3, wherein:said fluid proximate said elongate member outer surface comprises air. 5. A light source in accordance with claim 4, wherein:said fluid contained by said elongate thermally conductive member is a cooling medium other than air. 6. A light source in accordance with claim 3, wherein:said elongate thermally conductive member comprises a tube. 7. A light source in accordance with claim 6, wherein:said tube has a cross-section in the shape of a polygon. 8. A light source in accordance with claim 6, wherein:said tube has a cross-section having flat portions. 9. A light source in accordance with claim 1, wherein:said elongate thermally conductive member comprises a channel. 10. A light source in accordance with claim 3, wherein:said elongate thermally conductive member comprises an extrusion. 11. A light source in accordance with claim 10, wherein:said extrusion is an aluminum extrusion. 12. A light source in accordance with claim 10, wherein:said elongate thermally conductive member is a tubular member. 13. A light source in accordance with claim 12, wherein:said tubular member has a polygon cross-section. 14. A light source in accordance with claim 1, wherein:said fluid is moved in said elongate thermally conductive member. 15. A light source in accordance with claim 1, wherein:said elongate thermally conductive member comprises a thermal transfer media disposed therein. 16. A light source in accordance with claim 15, wherein:said elongate thermally conductive member comprises a flow channel for said thermal transfer media. 17. A light source in accordance with claim 1, wherein:each of said light emitting diodes emits white light. 18. A light source in accordance with claim 1, wherein:at least some of said light emitting diodes emit colored light. 19. A light source comprising:an elongate thermally conductive member having an outer surface;at least one light emitting diode carried on said elongate member outer surface;one or more electrical conductors carried by said elongate thermally conductive member and connected to said at least one light emitting diode to supply electrical power thereto;said elongate thermally conductive member being configured to conduct heat away from said at least one light emitting diode to fluid contained by said elongate thermally conductive member; andsaid elongate thermally conductive member comprises one or more heat dissipation protrusions. 20. A light source comprising:an elongate thermally conductive member having an outer surface;at least one light emitting diode carried on said elongate member outer surface;one or more electrical conductors carried by said elongate thermally conductive member and connected to said at least one light emitting diode to supply electrical power thereto;sai d elongate thermally conductive member being configured to conduct heat away from said at least one light emitting diode to fluid contained by said elongate thermally conductive member; andsaid fluid is moved in said elongate thermally conductive member. 21. A light source comprising:an elongate thermally conductive member having an outer surface;a plurality of light emitting diodes carried on said elongate member outer surface at least some of said light emitting diodes being disposed in a first plane and others of said light emitting diodes being disposed in a second plane not coextensive with said first plane;electrical conductors carried by said elongate thermally conductive member and connected to said plurality of light emitting diodes to supply electrical power thereto; andsaid elongate thermally conductive member being configured to conduct heat away from said light emitting diodes to fluid contained by said elongate thermally conductive member; andsaid fluid is moved in said elongate thermally conductive member. 22. A light source comprising:an elongate thermally conductive member having an outer surface;a plurality of light emitting diodes carried on said elongate member outer surface at least some of said light emitting diodes being disposed in a first plane and others of said light emitting diodes being disposed in a second plane not coextensive with said first plane;electrical conductors carried by said elongate thermally conductive member and connected to said plurality of light emitting diodes to supply electrical power thereto; andsaid elongate thermally conductive member being configured to conduct heat away from said light emitting diodes to fluid contained by said elongate thermally conductive member; anda coating carried on said elongate thermally conductive member. 23. A light source in accordance with claim 22, wherein:said coating is infused with optically reflective material.